11.   It has a special handle for carrying convenience, a unique locking system to prevent spillage, and cool colors that children will like.

12.   Space controllers will not know whether the mechanical locking system worked correctly until about an hour and a half after the linkup, officials said.

13.   The company also plans to soon market a gun with an internal, electronic locking system, Lang said.

14.   They include cockpit doors with bullet-proof glass and special locking systems to prevent hijackers from commandeering planes.

15.   Yong is also working on a synchronised locking system for toilets which are linked to two rooms.

16.   Her husband was said to have kept a knife, a screwdriver and hammer under his pillow and to have fitted a special locking system on his bedroom door.